ballistic coeficient

ballistic coeficient

Joined: September 13th, 2013, 6:50 pm

September 22nd, 2013, 6:42 pm #1

Do any of the pellet companies publish the ballistic coefficients of there pellets? If so where would I find them.
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Joined: June 30th, 2011, 11:13 pm

September 22nd, 2013, 7:02 pm #2

I've not seen any manufacturer list BEs for their pellets. My understanding from reading the Yellow and other forums is that BC can vary by such factors as distance, velocity and even barrel type. Sort of a moving number, though averages do help in setting up trajectory calculations in ChairGun Pro, for example.

Aside from the database in ChairGun Pro, these two may be useful references:

http://www.photosbykev.com/wordpress/us ... etdata.htm

http://www.chronoconnect.com/?page=pellet-list
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Joined: May 12th, 2001, 1:29 pm

September 22nd, 2013, 9:41 pm #3

Do any of the pellet companies publish the ballistic coefficients of there pellets? If so where would I find them.
...easily converted to BC using this AoA online calculator: http://www.airgunsofarizona.com/Calcs.html

So far as I know, Gamo's the only pellet manufacturer that does.

Steve
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Joined: August 27th, 2004, 8:03 pm

September 23rd, 2013, 3:22 am #4

Do any of the pellet companies publish the ballistic coefficients of there pellets? If so where would I find them.
The thing is that the BC of a given pellet varies considerably when shot from different guns. Pellets are a different world than bullets!
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Joined: May 2nd, 2013, 12:17 pm

September 23rd, 2013, 8:28 am #5

Do any of the pellet companies publish the ballistic coefficients of there pellets? If so where would I find them.
publish some retained velocity figures at different distances for some of their pellets on their website.
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Joined: April 25th, 2003, 11:44 pm

September 23rd, 2013, 11:45 am #6

...easily converted to BC using this AoA online calculator: http://www.airgunsofarizona.com/Calcs.html

So far as I know, Gamo's the only pellet manufacturer that does.

Steve
I have just written a review for Gamo USA on their Gamo Master Point .22 and referenced this video for the consumers.

Two different pellets, Gamo and JSB Straton, but of similar shape and weights, shot from the same rifle in the same conditions:

http://smg.photobucket.com/user/Kyogle/ ... s.mp4.html

It would be interesting to see Gamo attempt to derive a BC from a test over chronographs at the range these were shot; but not with my chronographs thank you! ...............

Best regards, Harry.



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Joined: April 25th, 2003, 11:44 pm

September 23rd, 2013, 11:46 am #7

...easily converted to BC using this AoA online calculator: http://www.airgunsofarizona.com/Calcs.html

So far as I know, Gamo's the only pellet manufacturer that does.

Steve
nt
Last edited by Yrrah on September 23rd, 2013, 11:47 am, edited 1 time in total.
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Joined: November 9th, 2009, 2:41 pm

September 23rd, 2013, 2:30 pm #8

I have just written a review for Gamo USA on their Gamo Master Point .22 and referenced this video for the consumers.

Two different pellets, Gamo and JSB Straton, but of similar shape and weights, shot from the same rifle in the same conditions:

http://smg.photobucket.com/user/Kyogle/ ... s.mp4.html

It would be interesting to see Gamo attempt to derive a BC from a test over chronographs at the range these were shot; but not with my chronographs thank you! ...............

Best regards, Harry.


my mind on this topic!
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Joined: May 12th, 2001, 1:29 pm

September 23rd, 2013, 8:20 pm #9

I have just written a review for Gamo USA on their Gamo Master Point .22 and referenced this video for the consumers.

Two different pellets, Gamo and JSB Straton, but of similar shape and weights, shot from the same rifle in the same conditions:

http://smg.photobucket.com/user/Kyogle/ ... s.mp4.html

It would be interesting to see Gamo attempt to derive a BC from a test over chronographs at the range these were shot; but not with my chronographs thank you! ...............

Best regards, Harry.


...but I've never attempted to check them, personally.

My reply was merely in answer to the original question as posed.

Steve
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Joined: May 12th, 2001, 1:29 pm

September 23rd, 2013, 8:29 pm #10

publish some retained velocity figures at different distances for some of their pellets on their website.
http://www.hn-sport.de/fileadmin/user_u ... et_eng.pdf

http://www.hn-sport.de/fileadmin/user_u ... et_eng.pdf

Steve
Last edited by pneuguy on September 23rd, 2013, 8:42 pm, edited 1 time in total.
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